水稻XYLP7基因在维管系统发育中的功能

Xylogen is a kind of chimeric arabinogalactan proteins (arabinogalactan proteins, AGPs) containing atypical lipid transfer protein domain (nsLTP, non-specific lipid transfer protein), it can initiate the xylem cell differentiation. Xylogen is secreted by the differentiating vascular cells and transported to the adjacent undifferentiated cells for initiating these cells differentiate to tracheary elements; therefore, xylogen plays an important role in the development process of vascular system in plants. To study the biological function of OsXYLP7 gene in rice, the author bought T-DNA insertion mutant related to OsXYLP7 gene from South Korea PFG mutant library, and found that the xylp7 mutant have defects in the vascular system development, which indicated that the OsXYLP7 plays a role in the development of rice vascular system.